Vid elproduktion med hjälp av dieselgeneratorer och gasturbiner kan så mycket som 70% av energiinnehållet omvandlas till spillvärme och försvinna ut genom avgaser eller kylsystem. Genom att istället låta spillvärmen gå genom Againitys ORC-system kan energin nyttogöras och omvandlas till värdefull elektricitet.
Även solvärme och geotermisk värme kan nyttjas som värmekälla i ORC-systemet. Genom att värma vatten/olja som sedan lagras i ackumulatortankar kan du spara energin och förse ORC-systemet med värme när behovet uppstår. Elproduktion dygnet runt – utan dyra batterier.
Många industriella processer genererar överskottsvärme som inte
sällan försvinner ut genom skorstenen. Tillverkning av pappersmassa,
aluminium, cement, tegel, glas, kemikalier, te, öl och läskedrycker är
exempel på processer som kan ge upphov till stora mängder värmeenergi.
Med Againitys ORC-system kan värmeenergin omvandlas till elektrisk
energi medan du sänker din elräkning och dina effektavgifter och
samtidigt gör en insats för ett mer hållbart energisystem.
Genom att elda flis, biogas eller avfall i en hetvattenpanna som är kopplad till Againitys ORC-system så omvandlas bränslet till el och varmvatten. Varmvattnet kan levereras upp till 80 grader och nyttjas för fjärrvärme, lokal uppvärmning av inomhusmiljöer eller industriella processer. Med en enkel installation blir du kraftvärmeproducent och bidrar till ett grönare och mer väderoberoende energisystem.
The wood chip fired heating plant in Moheda is now being upgraded to a
combined heat and power plant. Alvesta Energi AB has ordered a new type of
small-scale steam turbine (ORC turbine) for electricity production from the existing
hot water boiler on the heating plant.
“We have chosen this as our first step in creating local, small-scale and renewable electricity”, ”says Mats Karlsson, CEO of Alvesta Energi. “We do this with the help of an ORC turbine unit connected to our hot water boiler and we expect to produce half our own annual electricity demand at the heating plant in Moheda. The simplicity of the ORC unit and minimal rebuilding of the existing facility are the major advantages.”
During the summer of 2019, the turbine will be installed at the heating plant in Moheda. The technology is based on Organic Rankine Cycle (ORC) that extracts electricity from the low-temperature hot water from the wood chip boiler.
The ORC turbine will have an output of 49.9 kW electricity, which
corresponds to 140 single-family homes with solar PV cells. On an annual basis,
approximately 170 MWh of electricity will be produced at
the plant. The installation on the heating plant consists of piping from the
boiler circuit, piping from the district heating circuit and connection of the
Thanks to minimal maintenance and the low cost of the turbine the installation is profitable despite the relatively low electricity prices in Swedish market. The ORC turbine becomes the number nine turbine in Sweden that the Norrköping based company Againity installs, where the majority of the turbines are connected to biomass fuelled hot water boilers.
Solör Bioenergy has now installed their first ORC turbine and thereby
upgraded the wood chip fired heating plant in Hörby to a CHP. Adding new green
electricity to our European energy system.
In order to produce electricity, you have traditionally needed to turn the
water into steam to run a turbine. The new electric turbine, a so-called ORC
turbine, will instead use parts of the hot water from the hot water boiler and
transform it into electricity for local use on the heating plant.
-This technology has been developed by the supplier Againity and makes it
possible to produce electricity from parts of our hot water. We expect to be
able to produce about 400 MWh in the plant, which covers about 60% of our own
needs. The great thing about this type of power generation is that it provides
continuous electricity production regardless of weather, “says Flemming
Rasmussen, Regional Manager at Solör Bioenergi South.
Hörby is the first to install the ORC turbine among Solör Bioenergi’s 40
farms in Sweden.
“This is an incredibly exciting project and part of Solör’s major work
on energy efficiency. We continuously work to save energy in our facilities by
increasing efficiency and reducing losses. Even though we use 99% biofuel in
our facilities, this is also a way of working in a climate-friendly way, says
Anders Pettersson, CEO Solör Bioenergi Fjärrvärme AB.
Vänerenergi AB invests just over SEK 1.8 million on renewable electricity production in the heating plant in Töreboda. In the spring of 2019, the heating plant will be supplemented by an & nbsp; ORC turbine.
– This is a good investment for the environment, says district heating manager Kjell-Åke Wallström.
During spring 2019, the VänerEnergi will install an ORC turbine to the hot water boiler at Töreboda heating plant. The technology is based on the Organic Rankine Cycle (ORC), which allows low-temperature heat flows, in this case 105-degree hot water, to be used to extract electricity.
One of the major advantages of being able to produce electricity while producing heat is that electricity is produced when we need it the most, that is, especially during the winter,” says Kjell-Åke Wallström, district heating manager at VänerEnergi.
On an annual basis, approximately 210 MWh of electricity will be produced at the plant, resulting in annual emissions savings of 180 tonnes of carbon dioxide equivalents when replacing European marginal electricity. The ORC turbine will be the eighth of which the Norrköping based company Againity AB delivers, where the majority of turbines are instaslled to biomass fueled hot water boilers.
Although we have an increasingly urgent need for weather-independent electricity generation in our energy system, turbines are still missing in more than 400 Swedish district heating plants,” says David Frykerås, CEO of Againity. “We are pleahappy to see that VänerEnergi is at the forefront and chooses to upgrade its heating plant to CHP.”
The installation corresponds to two pipes from the boiler circuit, two pipes from the district heating system and a power cable. With minimal maintenance and low manufacturing costs the installation will be profitable despite the relatively low electricity prices on the Swedish market.
The heating plant in Töreboda is located in the area of Moelven’s laminated wood factory and the residual products are delivered via transporters directly from the laminated wood factory to the heating plant. In addition to the boiler, the heating plant consists of a cutter chip that is also fired by a wood-fired boiler and a bio-oil boiler that can be started up quickly if one of the solid fuel boilers falls out. The district heating supply, which is 100% renewable, amounts to about 28,000 MWh / year, which corresponds to the annual consumption of hot water and heat in approximately 1,400 normal-sized villas.
Since spring 2017, over 700 people have visited the ORC system which Againity has delivered to the district heating plant of Bräkne-Hoby. Do you also want to come and have a closer look at an ORC system? Look out for the next demonstration day on our website or contact us at firstname.lastname@example.org or +46 (0)705-29 32 23.
Againity has been appointed to have one of Sweden’s smartest energy innovations! Today, 4 billion people put their waste in nature and the majority of our energy comes from coal and oil. If you want to vote in the competition, click here.